Line gauge for printing forms



Feb-10, 1925- 1,526,o51 fl C. CHISHOLM LINE GAUGE FOR PRINTING FORMSFiled Nov. 8, 1923 .Biz 7 9,1/5( @Amway HTfEL/Z-/S Patented Feb. 1G,1925i.

CLIFTON CHISHOLM, OF CLEVELAND, OHIO, ASSIGNOR TO THE AMERICAN MULTI-GRAPH C0., OF CLEVELAND, OHO, A. CORPORATON 0F OHIO.

LNE GAUGE FOR PRNTING FORBES.

Application led November To all whom it may concern:

Be it known that l, CLIFTON CHrsHoLM, a citizen of the United States,residing at Cleveland, in the county of Cuyahoga and State of Chio, haveinvented a certain new and useful Improvement in a Line Gauge forPrinting Forms, of which the following is a full, clear, and exactdescription, reference being had to the accompanying drawings.

The object of this invention is to provide a very simple and effectivemea-ns for positioning printing members on a form-holder so that oneedge of the successive printing members may be in alignment. My linegauge, which effects this result, may, for instance, position printingstrips which print a page form and thus provide for the accuratelocation of the left hand end of the lines on the printingpage, or mygauges may be used for various taublating work, if

desired.

Patent No. 1,438,584 granted December 12, 1922 to The AmericanMultigraph Company as assignee of William J. Demming shows a sheet metalform-holder wherein there are rows of struck-up buttons, each connected.with the form-holder in the line of the row but having its edgesdisconnected transversely of the row. The disconnected edges thusoverhang the general surface of the holder and provide means forretaining an inwardly flanged printing strip, which is mounted on therow of buttons and has its flanges projecting beneath their edges.

1 have discovered that by taking a thin narrow strip of metal andpassing it transversely of the holder just described, through the spacebeneath the tops of the aligned buttons and above the general surface ofthe plate, I may provide in a very simple form an abutment for thesuccessive lines stopping them accurately in position. Furthermore whenthe holder is curved about a rotary printing member, the tendency of theinserted strip to resist iiexure holds it effectively in place withoutrequiring any special fastening means. My gauge may be readily insertedafter a complete page blanket is made up, whether it is flat or mountedon a drum.

By suficiently curving the form-holder, I may insert the gauge strip atany line desired over the top of the adjacent button in the succeedingline. By using diiferent 8, 1923. Serial No. 673,413.

lengths of gauges, lines may be accurately tabulated, if desired.

My invention is illustrated in the drawing hereof and is hereinaftermore fully described. As shown in the drawing, Fig. l is a. plan of aportion of the blanket provided with lmy gauge for positioning embossedprinting strips; Fig. 2 is a fragmentary side elevation of such blanketmounted on a printing drum; Fig. 3 is an enlarged crosssection asindicated by the line 3 3 on Fig. l; Fig. 4 is a fragmentary perspectiveillustrating the coaction of the blanket, embossed strip and gauge; Fig.5 is a perspective of one of the gauge strips unapplied; Fig. 6 is afragmentary plan illustrating tabulation effected by my gauges.

As shown in the drawings, 10 indicates a suitable blanket, preferably ofiieXible sheet metal, having successive rows of struck-up buttons 11thereon. Each button is preferably round and has its two side edges12disconnected from the body of the plate, and its intervening edgesconnected therewith in the line of the row. Preferably these interveningedges merge with upwardly corrugated portions 13 of the plate whichstiften the plate in the direction of the row and form a support for theoverlying embossed strip, as set out in Patent No. 1,438,582 grantedDecember 12, 1922 to The American Multigraph Company as assignee of B.J. Craio.

Tlige drawing shows printing strips 20, which are preferably metalmembers embossed with printing characters and having their edges 21iianged inwardly. Each strip overlies and is supported by the row ofbuttons and the intermediate corrugations of the plate and has itsflanged edges projecting beneath the overhanging edges 12 of thebuttons, whereby the strip is effectively held on to the blanket asfully explained in the Demming and Craig patents mentioned.

To enable the flanged strips to be readily mounted on such a blanket asdescribed, it is desirable that they engage the buttons with sufiicientfreedom so that they may be readily slipped into place. Accordingly,unless otherwise held, such strips are liable to become displacedlongitudinally thereof driving the printing operation.

Fig. 5 illustrates my line gauge 30 which effectively positions theprinting strips at one end. This line gauge is simply a thin,

narrow strip of spring metal, having a width slightly lasst-han thewidth of the available space beneath the button head, and having athickness sliGhtly less than the height of that space, and having a'length sufiicient to position the number of lines desired. Preferablyvarious lengths of these flatstrips 8O are provided so that either awhole page of lines may be gauged as intended to be illustrated in 1 orportions ot pages may be run in tabulated form, as illustrated in Fig.6. The gauge strip may be readily inserted, whether the form be flat orcurved', does not interfere' with the flexing thereof, and holds itselfin position. A simple prick-punching of the embossed strips adjacenttheir other ends may prevent the strips shifting in the holder; or ifdesired the strips may be oit uniform length and a gauge strip insertedat their opposite end, as shown in the case of the tabulation in Fig. 6.

l claim:

l. The combination of a holder provided with a row of hollow bosses,said bosses being connected with the holder in the line of the row anddisconnected from the holder at edges transversely of the row, aprinting strip resting on the row of bosses and having dependingflanges, and a gauge member extending transversely through a boss andadapted to be abutted by a flange of the strip.

2. The combina-tion of a form-holder provided with rows of hollowbosses, said bosses being connected with the holder in the line of therow and disconnected .from the holder at edges transversely of the row,printing strip resting on the rows of bosses, and a gauge memberextending` transversely through raised bosses in diiiierent rows.

3. The combination of a sheet metal formholder provided with rows ofbosses struck therefrom, said bossesf being connected with the holder inthe line of the row and dis connected therefrom at opposite sides of therow, inwardly flanged printing strips resting on the rows and projectingbeneath the disconnected edges ot the bosses, and a flattened metalstrip extending transversely through aligned bosses of successive rowsand movable through them.

4. The combination with ianged printing strips having inwardlyprojecting edges, and a` flat flexible gauge strip, ot a flexibleform-holder having thereon hollow upwardly projecting members abovewhich the printing strips may be mounted vlongitudinally and beneathwhich the gauge strip may be mounted transversely.

5. The combination with inwardly flanged printing strips, of a sheetmetal form-holder provided with longitudinal parallel rows of individualraised members on which the printing strips may lie7 said raised membershaving transversely overhanging edges beneath which the strips may beextended, the raised members in successive rows being intransversealignment, and a transverse gauge strip overlying the body of the holderand extending beneath the raised member in successive rows so that theflanged edge of the printing strips mayl abut In testimony whereof, l'hereunto afliX my signature.

CLIFTON CHISHOLM.

